# An object is projected horizontally from a top of the tower of height h. The line joining the point of ……

Q. An object is projected horizontally from a top of the tower of height h. the line joining the point of projection and point of striking on the ground makes an angle 45° with ground, then with what velocity the object strikes the ground

(a) $\displaystyle \sqrt {\frac{11 g h}{2}}$

(b) $\displaystyle \sqrt {\frac{9 g h}{2}}$

(c) $\displaystyle \sqrt {\frac{7 g h}{2}}$

(d) $\displaystyle \sqrt {\frac{5 g h}{2}}$

Ans: (d)